Rolling shutter.



PATENTED NOV. 20, 1906.

. J. G. WILSON. ROLLING SHUTTER.

APPLICATION FILED APR. 7, 1906.

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| I l I INVENTOH WITNESS ATTORNEYS THE NORRIS PETERS co., WASHINGTON, n.c.

groove or kerf grooves UNITED STATES PATENT orrron.

ROLLING SHUTTER.

Specification of Letters Patent.

Patented. Nov. 20, 1906.

Application filed A ia 7, 1906. Serial No. 310.524.

To all whom it may concern.-

Be it known that 1, JAMES G. WILSON, a subject of the King of GreatBritain, and a resident of Larchmont, Westche'ster county, and State ofNew York, have invented certain new and useful Improvements in RollingShutters, of which the following is a specification.

My invention relates to means for permitting light to pass through suchshutters, and is intended to be applied more particularly to the shutterpatented to me in United States Letters Patent No. 405,450, June 18,1889, although I do not limit myself to the application of my inventionto the device there shown.

In the drawings, Figure 1 is a front view of the structure embodying myinvention, parts being broken away. Fig. 2 is a vertical section on theline 2 2 of Fig. 1, and Fig. 3 is a horizontal section on line 3 3 ofFig. 1.

In the drawings, a a are a series of slats of wood or other suitablematerial threaded upon a number of metallic bands A, distributed atproper intervals throughout the width of the structure, the slats beingprovided with suitable interlocking tongues and to hold the sameparallel with each other and to give strength and stiffness to thestructure. The lower ends of the metallic bands are attached to coiledsprings B, located in recesses in the lower slat O and attached to saidslat by means of screw D, nut d, and metal plate e. The generalconstruction and operation of the device is that shown in my earlierpatent, above referred to and need therefore not be more fully describedhere.

In order to permit light to pass through the rolling shutter, I insertbetween one or more pairs of slats 0, strips of translucentmaterial-such as mica, glass, wire-netting, or glass or other likematerial reinforced by wire-netting. As shown in the lower part of Figs.1 and 2, one of the slats a is provided with a groove or kerf n,corresponding to a m in the slat 0 located above the same. Into thesegrooves or kerfs I slip a strip of translucent material on in such amanner that the same is held in these grooves or kerfs.

In order to prevent the crushing of the strips 20 by the pressure of theslats, I provide distenders y 2, preferably made of metal, slipped intothe grooves or kerfs and placed in front and rear, respectively, of themetallic These distenders serve to keep the slats a and a at a properdistance from one another. As no light passes through the metallic bandsA, the distenders are preferably placed in front and in rear of thesebands, as in any other locality they would prevent the passage of somelight-rays through the shutter.

At the upper portion of Figs. 1 and 2 and also in Fig. 3'1 have shownanother form of my invention. In this form the slats 1 and 2 areprovided with central grooves or kerfs 3, running lengthwise of saidslats, and are prevented from being drawn together by the springs B bymeans of short sections of slats 4. These short sections 4 arepreferably at points where the metallic bands A will pass through them,said sections 4 being slotted, as at 5, for this purpose. are thusprevented from moving lengthwise of the slats 1 and 2 and serve asdistenders in the same manner as the distenders y and z, hereinbeforedescribed. The sections 4 are also provided with grooves or kerfs 6,running transversely of the grooves 3 in the slats 1 and 2. In this formof my invention the translucent material 7 is introduced in sections,each section being located between two short slat-sections 4, the fouredges of said sections of translucent material 7 being received in thegrooves 3 of the slats 1 and 2 and the grooves 6 of the slat-sections 4.The translucent material 7 is thus held securely in position in the samemanner as a pane of glass in a window and is prevented from beingcrushed by the pressure of the adjacent slats by the short slat-sections4.

Of course the form and construction of the distenders, as well as of thetranslucent strip, may be widely varied without departing from thespirit of my invention. Nor do I limit myself to the use.of thisinvention in roller-shutters, it being applicable to many otherstructures, such as partitions and linds. Cables or wires may besubstituted for the bands.

I/Vhat I claim as new, and desire to secure by Letters Patent, is

1. In a rolling shutter a series of slats threaded on metallic bands, inwhich. two adjacent slats hold between them a strip of translucentmaterial.

2. In a rolling shutter a series of slats threaded on metallic bands, astrip of translucent material held between several of such translucentstrips :11.

bands A at the points where they cross the These sections 4 IIO slats,and means for holding said slats separated in order to prevent acrushing of the translucent strip.

3. In a rolling shutter a series of slats threaded on metallic bands andstrips" of translucent material held between such slats in groovesprovided in the adjacent sides of such slats.

4. In a rolling shutter a series of slats threaded on metallic bands, astrip of translucent material held between a pair of such slats ingrooves provided in the adjacent sides of such slats, and one or moredistenders located in said groove to prevent a crush ing of thetranslucent strip.

5. In a rolling shutter, a series of slats threaded on metallic bands,and one or more distenders holding apart the members of a pair of slats,the aggregate width of such distenders being less than the length of theslats, so that light may pass between the slats, substantially asdescribed.

6. In a rolling shutter, a series of slats threaded on metallic bands,one or more distenders holding apart the members of a pair of slats, andstrips of translucent material for closing the opening between saidslats.

In testimony whereof I have hereunto set my hand in the presence of twosubscribing witnesses.

JAMES G. WILSON. Witnesses:

JOHN Lo'rKA, JOHN A. KEHLENBEOK.

